`2/13+4/13+1/13`

3/13+7/13+1/13

5/13-5/13 =

Work out the following : 7/13+2/13-5/13

Solve : 4/(13)+2/(13)+1/(13)

4/13+9/13+2/13=-/13

If [(2+x,3,4),(1,-1,2),(x,1,-5)] is a singular matrix then x is (A) 13/25 (B) -25/13 (C) 5/13 (D) 25/13

3/13-2/13+5/13 =

Two cards are drawn from a well shuffled deck of 52 playing cards with replacement. The probability that both cards are queen is a. 1/(13)xx1/(13) b. 1/(13)+1/(13) c. 1/(13)xx1/(17) d. 1/(13)xx4/5

Let P(A)=7/(13), P(B)=9/(13) and P(AnnB)=4/(13) . Then P( A //B)= 5//9 b. 4//9 c. 4//13 d. 6//13

If A, B, C are three mutually exclusive and exhaustive events of an experiment such that 4P(A) = 3P(B)=2P(C), then P(B) is equal to (i) 1/13 (ii) 2/13 (iii) 3/13 (iv) 4/13